Self-regulating lamp



(No Model.)

V. DI MARZO.

SELF RBGULATING LAMP. No.,339,911. Patented Apr. 13,V 1886.

AIl

INVEJvToR meen ZZl/Z? .Attorney m. l m [l llllllllllllllllllllllllllllll ln u PETERS. mwumograpm. washngvo, D. c.

WITJvEssEs NITED STATES PATENT OEEICE.

VINCENT DI MARZO, OF BENIOIA, CALIFORNIA.

SELF-REGULATING LAMP.

SPECIFICATION forming part of Letters Patent No. 339,911, dated April 13, 1886.

Application filed July 30, 1885. Serial No. 173,081. (No model.)

regulating lamps.

rIhe object of my invention is to improve and simplify the construction of that class of lamps which are provided with au oil-reservoir and a separate burner-supply regulatingchamber, whereby the cost of their manufacture will be less and their operation more simple and nearly perfect than heretofore.

The invention consists in certain details of construction of burner supply regulating mechanism, and in securing the primary oil reservoir or chamberv upon the tubular supporting-standard of the lamp, as will be hereinafter particularly described.

In the accompanying drawings, forming part of this speciticatiou, Figure l is a vertical section of a lamp embodying the invention. Fig. 2 is a detailview of thepipe above the reservoir when the invention is applied to a hanging lamp. Fig. 3 is a detail view of a suitable valve for the induction-orifice of the supply-tube.

A is the reservoir, which may be of any suitable size, shape, or style, and which is supplied with oil in any convenient manner, as through an aperture, a. It is to be understood that the aperture may be supplied with a suitable cap or plug. The reservoir may be upon thelamp or elsewhere, and may be supplied with a gage-glass or any other suitable device, as with a iioat and chain or cord, a, as shown, to indicate the height of its contents. Y

B is a pipe,which passes centrally, or substantially so, through the reservoir as the invention is here exhibited, and which thus forms the main support or the standard of the 5o lamp. The lamp may be either a suspension lamp, a standing lamp, or a bracket-lamp to be attached to a wall, in any case the central tube preferably forming the standard by which the lamp is held in position.

In the present instance the invention is illustrated as applied to asuspensiou or hanging lamp, so that chains or cords :care shown attached to the tube above the reservoir and passing over pulleys y to a counterpoise or ring, z, around or upon an outer tube in which the central tube, B, slides.

Any other suitable means for raising or lowering a hanging lamp may be 'adopted without deviating irom my invention.

In the illustration of the invention here shown the central tube, B, passes vertically downward through the reservoir A into a separate regulator, O, consisting of an upper or float chamber, O', and a lower chamber, O2. Vithin the reservoir, and preferably at a short distance above its bottom, the pipe B is provided with an aperture, b, for the admission of oil. The regulating-chamberor regulator O is of any desirable size, shape, or style, and is preferably suspended below the reservoir A upon the pipe B, this pipe passing centrally through it. The iloat-chamber O is provided with an appropriate bottom, c. Below the iioat-chamber the pipe B has au elbow, D, which is bent or curved upward and enters the float-chamber through its bottom.

VVithiu the float-chamber O', and placed upon the central pipe in such manner as to be free to move up and down thereon, is a iloat, E. At the upper and lower part of this iioat are two rings, e, which form collars for the float upon the pipe, and by having these rings alone instead of an extended tube of the ntire depth or even of a greater depth than the -iioat, which tube cannot always be straight,

and by adjusting the size of the rings to the pipe, so that they will barely touch the same at two points, friction is reduced to a minimum.

Attached to the float, preferably near the perimeter of the same, to give greater leverage,is a vertical rod, F, which may be adjusted in length to regulate the extent of its movement by a thumb-nut, f', or otherwise, and which is pi-voted, asat f, to a horizontal bar IOO or lever, G. This vbar or lever at its central part spans the tube B, where it has awide collar or bend, to allow the free action of the 1e ver on the valve as a handle. The rod F is so attached to the oat as to move with itin both directions, and does not only move up with it as heretofore. Y

The extremity of the lever G, opposite its attachment to the rod F, forms a cap-valve, H, which valve is over the induction-opening of the pipe D, where this pipe is tapered to lessen the oritice and form a seat for the valve. The lever G, carrying the valve, is hinged upon the induction tube or pipe D. rlhe valve H maybe of any suitable kind; but I prefer to have it constructed in the nature of a cap having a central conical depression provided with a suitable washer, h, to fit over and upon the seat or tapered end of the pipe D. The washer may be held in place by a packingring. 'It will be understood that the float rests in the liquid in the chamber C', and that as the liquid rises the iioat rises with it, and in this manner raises the rod F and operates the lever G, which controls the valve and lessens or entirely stops4 the supply. Below the pipe D the pipe B is provided with a plug or stopper b'.

Y Beading out from the bottom of the chamber C is a pipe, I, which joins the pipe B below the plug or stopper b. rIhe lower part of the pipe B, with which the pipe I communicates,

leads to a distributer, J, which has leading from it the pipes K, which supply the burners L.

Instead of having the pipe B plugged, as at b', it may end below the pipe D, and there may be a separate pipe with which the pipe I communicates to feed the distributer; but the construction shown is preferred, as being more compact.

Instead of having the pipe I and distributer J and pipes K, pipes may lead directly from the chamber C to the burners, as shown in dotted lines. It is obvious that as the oil is discharged to the distributer the valve over the induction-pipe will open.

f There may be any number of burners.

These may be arranged in any suitable manner, and the invention may be applied to any suitable lamp.

It is evident that the supply-pipe might be outside of the regulator, as shown in dotted lines, in which case a rod might be placed in the center of the chamber for the support4 or standard, alongwhich the float would slide, and thus prevent it from catching against th sides of the regulator.

From the foregoing the operation of the device shown will readily be understood, and

may be stated` in sequence as follows: The j reservoir having been 'supplied with oil, the same will enter the pipe B through the aperf ture b, and passing downward lwill run into the chamber C through the bent pipe D. the oil enters the chamber C it will raise the float E, and, as this carries up with it the rod F, it will operate the lever G, and close thevalve. As the chamber C' is depleted by passage of the oil to the burners, the-float sinks and the valve is opened.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a lamp, the ,combination `of the tube B, a primary oil reservoir or chamber surrounding the same, a separate supply-regulatin g chamber having inlet and outlet openings, also surrounding the said tube,` the two chambers communicating through the tube, and a rod pivotally arranged in the regulating-chamber, provided. at one end with the valve, and a float to Whichthe rod is connected, substantially as described.

2. The combination, with the pipe or tube4V B, a primary oil chamber or reservoir Ysurrounding the same, and a separate supply-regulating chamber, also surrounding the tube B, the two chambers communicating through the pipe, of a float located in said regulating chamber, 4surrounding and guided by the tube B, and a valve operated by said iloat to open and close the inlet to the supply regulating chamber, substantially as described.

3. In a lamp, the combination of the tube B, av primary oil reservoir or chamber s'ur-l rounding the same, a separate supply-regulating chamber having inlet and outlet openings,also surrounding the tube, the iioat situated in the regulating-chamber having the collar e,y surrounding and slidingupon the tube, and t-he valve-lever connected to the iioat and operating to open and `close the inlet to the regulatingchamber. Y

4. The combination, in a lamp, of the een#` tral tube, B, the main reservoir and -the separate supplyregulating chamber upon said tube and communicating therethrough bymeans of the opening b in the tube and inlettube D, asupply-outlet, and a valve operated` by a iioat in said supply-chamber to open-'and close the end of the inlet-tube, substantially as set forth. y

In testimony whereof I ax my signature in presence of two witnesses.

VINCENT DI MARZO. 

